AC1L7H8O;91480-78-3;butyl 4-[4-(4-butoxy-4-oxobut-2-enoyl)-2,5-dimethylpiperazin-1-yl]-4-oxobut-2-enoate;BUTYL 4-[4-(3-BUTOXYCARBONYLPROP-2-ENOYL)-2,5-DIMETHYL-PIPERAZIN-1-YL]-4-OXO-BUT-2-ENOATE
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